Headphone



FIG. 1 is a left perspective view of a headphone showing our new design;

FIG. 2 is a right perspective view of the headphone in accordance with the present design;

FIG. 3 is front view of the headphone shown in FIG. 1;

FIG. 4 is back view of the headphone shown in FIG. 1;

FIG. 5 is a left view of the headphone shown in FIG. 1;

FIG. 6 is a right view of the headphone shown in FIG. 1;

FIG. 7 is a top view of the headphone shown in FIG. 1; and,

FIG. 8 is a bottom view of the headphone shown in FIG. 1. 

The ornamental design for a headphone, substantially as shown and described. 